- ICH GCP
- US Clinical Trials Registry
- Clinical Trial NCT05989763
Interrogating the Pathophysiological Mechanisms of Constipation in Patients With Systemic Sclerosis (TEA in SSc)
November 30, 2023 updated by: Zsuzsanna Hortobagyi Mcmahan, The University of Texas Health Science Center, Houston
The purpose of this study is to determine whether transcutaneous electrical acustimulation (TEA) alters systemic sclerosis (SSc)-related colonic and anorectal physiology by enhancing autonomic nervous system (ANS) function.
The study will examine the effects of TEA on slow colonic transit (SCT) and rectal hyposensitivity (RH), to examine whether TEA improves autonomic dysfunction and modulates inflammatory pathways.
Study Overview
Status
Not yet recruiting
Intervention / Treatment
Study Type
Interventional
Enrollment (Estimated)
60
Phase
- Not Applicable
Contacts and Locations
This section provides the contact details for those conducting the study, and information on where this study is being conducted.
Study Contact
- Name: Zsuzsanna H McMahan, MD, MHS (M-PI)
- Phone Number: 7135007531
- Email: Zsuzsanna.H.McMahan@uth.tmc.edu
Study Contact Backup
- Name: Sharvari R Kamat
- Phone Number: 713-500-6898
- Email: Sharvari.R.Kamat@uth.tmc.edu
Study Locations
-
-
Texas
-
Houston, Texas, United States, 77030
- The University of Texas Health Science Center at Houston
-
Contact:
- Sharvari R Kamat
- Phone Number: 713-500-6898
- Email: Sharvari.R.Kamat@uth.tmc.edu
-
Contact:
- Zsuzsanna H McMahan, MD, MHS (M-PI)
- Phone Number: 713-500-6883
- Email: Zsuzsanna.H.McMahan@uth.tmc.edu
-
-
Participation Criteria
Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.
Eligibility Criteria
Ages Eligible for Study
- Adult
- Older Adult
Accepts Healthy Volunteers
No
Description
Inclusion Criteria
- Patients with SSc-constipation from Aim 1 of the study
- Patients with SCT (>20% radiopaque marks left in the colon 5 days (120 hours) after swallowing the Sitzmark capsule or patients with RH (defined in Aim 1)
- Patients not yet on therapy for constipation or patients who continue to experience constipation while on stable therapy for one month prior to TEA.
Exclusion Criteria
-Patients with symptoms of both diarrhea and constipation but not predominantly symptoms of constipation.
Study Plan
This section provides details of the study plan, including how the study is designed and what the study is measuring.
How is the study designed?
Design Details
- Primary Purpose: Treatment
- Allocation: Randomized
- Interventional Model: Parallel Assignment
- Masking: Quadruple
Arms and Interventions
Participant Group / Arm |
Intervention / Treatment |
---|---|
Experimental: Transcutaneous Electrical Acustimulation (TEA)
|
TEA will then be administrated for 1 hour twice daily for a period of 4 weeks
|
Sham Comparator: Sham-TEA
|
Sham TEA will then be administrated for 1 hour twice daily for a period of 4 weeks
|
What is the study measuring?
Primary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Change in slow colonic transit (SCT)
Time Frame: baseline, week 4 (visit 2)
|
slow colonic transit (SCT) is defined by more than 5 (20%) of Sitz markers retained 5 days after ingestion
|
baseline, week 4 (visit 2)
|
Secondary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Change in rectal hyposensitivity as assessed by the anorectal manometry
Time Frame: baseline, week 4 (visit 2)
|
baseline, week 4 (visit 2)
|
|
Change in autonomic dysfunction as assessed by the Heart rate variability (HRV) measures
Time Frame: baseline, week 4 (visit 2)
|
baseline, week 4 (visit 2)
|
|
Change in autonomic dysfunction as assessed by the COMPASS-31 measures
Time Frame: baseline, week 4 (visit 2)
|
This is a 31 item questionnaire and scores range from 0-100 a higher score indicating more severe autonomic dysfunction
|
baseline, week 4 (visit 2)
|
Change in inflammatory cytokines (IL-6, Tumour Necrosis Factor alpha (TNF-alpha) ),
Time Frame: baseline, week 4 (visit 2)
|
baseline, week 4 (visit 2)
|
Collaborators and Investigators
This is where you will find people and organizations involved with this study.
Investigators
- Principal Investigator: Zsuzsanna H McMahan, MD, MHS (M-PI), The University of Texas Health Science Center, Houston
Study record dates
These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.
Study Major Dates
Study Start (Estimated)
January 5, 2024
Primary Completion (Estimated)
August 14, 2028
Study Completion (Estimated)
September 1, 2029
Study Registration Dates
First Submitted
August 4, 2023
First Submitted That Met QC Criteria
August 4, 2023
First Posted (Actual)
August 14, 2023
Study Record Updates
Last Update Posted (Estimated)
December 4, 2023
Last Update Submitted That Met QC Criteria
November 30, 2023
Last Verified
November 1, 2023
More Information
Terms related to this study
Additional Relevant MeSH Terms
Other Study ID Numbers
- HSC-MS-23-0531
Plan for Individual participant data (IPD)
Plan to Share Individual Participant Data (IPD)?
NO
Drug and device information, study documents
Studies a U.S. FDA-regulated drug product
No
Studies a U.S. FDA-regulated device product
Yes
This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.
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